Ryobi RY10532 - Manual (Page 33)

33
Problem Possible Cause Solution
Engine will not start.
[Make sure ignition
switch is in the
RUN
( l ) position.]
No spark.
Engine is flooded.
Check spark. Remove air filter cover. Remove spark plug from
cylinder. Reattach the spark plug wire and lay spark plug on top
of cylinder with the metal part of plug touching the cylinder. Pull
the starter grip and watch for spark at spark plug tip. If there is no
spark, repeat test with a new spark plug.
With the ignition switch OFF, remove spark plug. Move choke
knob to RUN position (pushed in completely) and pull starter grip
15 to 20 times. This will clear excess fuel from engine. Clean and
reinstall spark plug. Set ignition switch to
RUN ( l ) position. Push
and fully release primer bulb 7 times. Pull starter three times with
choke knob at
RUN. If engine does not start, move choke knob to
HALF CHOKE and repeat normal starting procedure. If engine still
fails to start, repeat procedure with a new spark plug.
Engine starts but will
not accelerate prop-
erly. Carburetor requires “L”
(Low Jet) adjustment.
Contact an authorized service center for carburetor adjustment.
Engine starts, then
dies. Carburetor requires “L”
(Low Jet) adjustment.
Contact an authorized service center for carburetor adjustment.
Engine starts but will
not run properly at
high speed. Carburetor requires “H”
(High Jet) adjustment.
Contact an authorized service center for carburetor adjustment.
Engine does not reach
full speed and/or emits
excessive smoke. Oil/fuel mixture incorrect.
Air filter is dirty.
Spark arrestor screen is
dirty.
Carburetor requires “H”
(High Jet) adjustment.
Use fresh fuel and the correct 2-cycle oil mix ratio.
Clean air filter. Refer to Cleaning the Air Cleaner in the Maintenance
section of this manual.
Clean spark arrestor screen. Refer to Cleaning the Spark Arresting
Screen in the Maintenance section of this manual.
Contact an authorized service center for carburetor adjustment.
Engine starts, runs,
and accelerates but
will not idle.
Chain turns at idle.
C a r b u r e t o r r e q u i r e s
adjustment to idle speed.
C a r b u r e t o r r e q u i r e s
adjustment to idle speed.
Air leak in the intake
system.
Turn idle speed screw “T” clockwise to increase idle speed.
Refer to Adjusting the Carburetor in the Maintenance section of
this manual.
Turn idle speed screw “T” counterclockwise to decrease speed.
Refer to Adjusting the Carburetor in the Maintenance section of
this manual.
Contact an authorized service center for a rebuild kit.
BAR AND CHAIN COMBINATIONS
Chain specifications: .375 in. pitch, .05 in. chain gauge, 62 drive links, low-profile full skip tooth
Length of Bar Guide Bar Part Number Chain Part Number
18 in. 308639001 901431001
TROUBLESHOOTING